BGS mineralogy and petrology collection record

Sample number	E43598; COLLNOLB204;
Sample Donor	Jackson,A.A
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Matrix of blocky lava
Locality details	1.110 Km 140 deg from Twr y Maen
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7980 3005
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.